How to mend Heating Pcb Ariston

I have an Ariston Clas He system with an error code of 1P2?

Ariston microgenus 27 mffi problem?

What is the problem?

Why is the pressure on my Ariston boiler rising to nearly 4 Bar?

eurocombi?

ariston boiler slow to ignite?

Why is my ariston microgenus 23 combi boiler producing hot water downstairs?

Ariston Error Code E02 now A77?

Ariston microgenus 23 sounds like a jumbo jet!?

how to fix a err 103?

Boiler fault Ariston Dia 20 mffi ce type c?

Why does my boiler remain ON - even when switch is moved to OFF?

I have an Ariston Genus boiler. Fault showing 30 40 50, I can't find manual?

Error light blinking (orange colour) on Ariston e-combi boiler?

Heating? Ariston micro genus 27 mffi?

Arriston combi boiler hot water scalding temp light comes on?

gas boiler keeps going to reset?

ariston genus he shows error A06?

ariston e combi evo?

boiler stopped working?

ariston microgenus 23 chimney led on?

Replace PCb on 30he?

ariston boiler?

Ariston Microgenus 23 MFFI PCB Defect?

No display on Ariston e-combi approx3yrs old?

I have error code 108 on my Ariston Combi boiler what do I do to fix it?

E 34 on ariston boiler microgenus 24?

Please could anyone tel me why my boiler constantly shows err 501. I reset?

boiler keeps going out?

error code e02 wont work when pressurised?